Car-brake



(No Model.)

S. E. TER-RY.

GAR BRAKE Patented June 6,l 1882.

Figi

.Fig#

Jmveny: v

Eef: QJ/Ld,

y d A J J Ui\niTnDv 'STATES PATENT l (DFFICE. v

SAMUEL H. TERRY, OF GUTHRIE, MISSOURI. l

I CAR-BRAKE.

SPECIFICATION formingpart of Letters Patent No. 258,956.5,.dated June 6,1882. Application filed February 21,1882. (No model.)

United States, have invented new and useful Improvements in AutomaticGar-Brakes, of which the following is a full description, refervencebeing had to the accompanying drawings,

Figure l is a front elevation ot' one end of a platform-car; Fig. 2, anunder or bottom view; Fig. 3, a similar view of the draw-bar, Fig. 4, across-section on line x :c of Fig. 2.

The object of this invention is to provide a. car-brake which shall beto a certain extent self-acting, and which will be operated by means ofpressure on the outery ends ot' the draw-bars, either by reversin gtheengine or so far braking it that the momentumof each car will furnishsufficient pressure at its draw-bar to operate the brake; and its natureconsists in providing a spring draw-bar with a hinged section which maybe moved to one or both sides of its direct line; in providing it withsprings for returning the hinged section to its,A

proper line; in providing the axle of one pairl of wheels in one or bothtrucks of the car with. a worin or scroll; in connecting the brakechainwith apivot-bar formed or bent to be op-4 erated by the rear end orcross-head of the draw-bar; in providing the hinged section of thedraw-bar with side springs to return it to a central position, and inthe several partsy and combinations of parts hereinafter described andclaimed as new.

In the drawings,`A indicates the platform; B, the wheels; G, the trackor rails; D, thedraw-bar; D, the hinged section of the drawbar; E, themainspring of the draw-bar; F, the pivoted lever or bar foroperatingthechain G, the cross-bar or bridge for supporting the rear end of thedraw-bar; H, brake-bars; I I',

chains for connecting the proper devices with the brake 5 c, the worm orscroll on the axle; b,

the projection or point on the section D ofthe draw-bar o c, sidesprings for the hinged section of the draw-bar; d, the joint in thedraw-bar; e, beveled projection on the under side of the section D forholding the section in position when moved to one orthe other sides ofits straight line; f, the cross-head or rear end of section D', g, a pinon the cross-head f,- h, rear, and i front bars of the pivoted lever F;j, notches` inthe support or bridge G with which the projection orflange e engages; k, brake-lever; n, hangers for the brake-bar.

The part A is represented `in the drawings as a platform-car; but itwill be understood that it may equally well represent the bed or bottomof a freight, box, or other car or coach used on railways.

The wheels B are ot' the ordinary construction and are placed upon anordinary axle. As shown, these wheels are connected with the car-body bybrackets or standards, which are such as are used in straight cars; butI propose yto use trucks and support the body of the car upon the truck,and hold it by kingbolts in the usual manner, as my devices andimprovements are designed to operate in any of the known forms ot'trucks used for supporting and carrying car-bodies.

' The track C is the ordinary railway-track.

The draw-bar D is provided at lits outer end with the ordinary mouth orhead for receiving coupling-links or other coupling devices, and itis-supported in place in the usual manner. In some forms ot' 'draw-barsthey are already provided with springs, which, if they have lsutlicientmovement, may be used in the place of the spring E, which spring, asshown, has

a tendency to return the draw-bar to its eX-A treme voutward positionlafter any compressing-pressure has been removed, which is the reverseof the action of springs ordinarily applied to draw-bars. j

At the rear or inner end of the draw-bar I hinge the section D by thehinge d. This hinged section is provided on its under side with a pin,b, which extends low enough to connect with the scroll a of the axle. Itis also provided with a dan ge or shortprojection, e, which is beveledat its back end, so as to easily pass over the support or bridge Gr,andin order to have it return to its middle position when free from theaction of the scroll a or the flange e, I have provided side springs, c,which may be connected with the main draw-bar, as shown in Fig. 2, orwith the truck or body of the car, as shown in Fig. 3.

I provide one axle of the truck with the scroll or worm a, which is bestmade by casti IOO ing the worm or scroll with a collar suiiciently largeto slip over and be keyed or screwed to the axle. The lever or frame Fis so formed or bent that when the head j' of the section D strikeseither end of the lever or frame F it will move the end of the latterforward, while the bar iof the lever F is so formed as to bring thelever or pivot bar to its proper position when the draw-bar is returned.The chains I I' are connected with this lever or frame F, and receivetheir movement therefrom, the chain being rmly connected with thebrakebar H. A movement of either end of the lever F will set the brake.

In operation, when power is applied to the outer end of the draw-bar,either by the reverse action of the engine or the momentum of the cars,the spring E is compressed, and this backward movement of the draw-barbrings the pin or ange b into contact with the scroll or worm a, whenthe rotation of the scroll will throw the hinged section D to one sideor the other, according to the direction in which the wheels arerotated, and when so thrown to one side the ange e engages with thenotches j, (shown at Fig. 4,) which notches or guides are so located asto just free the pin b from the ends of the scroll, and they also holdthe section D' off at the side, and will hold the brake as long as theflangeseremain in the notches. When the pressure is removed a slight jarwill throw the flanges e out of the notches or bearings in the frame G,and the spring E will throw the draw-bar D D' so far forward as tobringthe pin b out ot' range of the scroll, when the side springs, c,will return the section D' lo its middle position or line. The movingbackward of either end of the bar or frame F communicates the motionthrough the chain or chains I to the brake-bar or brake-lever, and setsthe brakes; and as this brake is designed to be applied in the main tofreight-cars and freight-trains it will be found a very efficient aid tothe engineer in controlling his train, and it may be worked inconnection with the ordinary shaft or hand-wheel, or without it, asdesired.

In backing a train by the engine, the first movement throws the draw-barand its hinged section straight back, in which position it remains untilthe wheels commence movin g,when the movement of the wheels will throwthe head f over toward the side t" of the lever or frame F, in whichposition it will remain as long as the reverse movement is continued,and the only eiect it has in case it turns the frame-lever F is toslacken the chain I, for it will be understood that in braking either adouble or single lever brake the chain I' is not used, and in order toset the brakes when the train is backed suliciently far, the draw of theengine will cause the pin g to come in contact with the l inner bar, i,and the point i', which causes the frame F to move in the same directionthat the push on the opposite side gives it, and again sets the brake,so that the brake can be made to operate when the car is moving ineither direction. y

It willalsobeunderstood that the side springs, c c, are not ofsufficient strength to move the pivoted section of the draw-bar whilebraking the cars; but as soon as thebrakesare released then they willthrow the section again to its middle position, or in line.

What I claim as new, and desire to secure by Letters Patent, is asfollows:

1. The scroll a, attached toa car-axle, in combination, with the hingedsection or prolongation D of the draw-bar, having the projection or pinb, substantially as specified.

2. The pivoted lever or frame F, composed of the bars h t', incombination with the crosshead fof the bar D', substantially asdescribed.

3. The combination ofthe bar D', having the ange or projection e, withthe guide-bridge G and the head f, with the pivoted lever or frame F,substantially as set forth.

4. The combination of the pivoted sliding har D', having the projectionor pin b and head f, with the pivoted frame F and brake-operating chainI, substantially as specified.

5. The side springs, c, in combination with a sliding draw-bar, D,having a pivoted section, D', for setting the pivot-ed section whenmoved out of line, substantially as described.

6. The combination of the sliding draw-bar D, spring E, pivoted sectionD', pin b, and scroll a, with the pivoted lever or frame F, and thebrake-operating chain I, substantially as set forth. 7. The pivotedframe F, having the bar i, with its bend or stop i', in combination withthe head f of the bar D', and the pin g, whereby the brake can beoperated by pulling on the draw-bar, substantially as specilied.

SAMUEL H. TERRY.

Witnesses:

MARIE L. PRICE, A. H. ADAMS.

ICO

